Centrifugal reel



(No Model.) s sheets-sheet 1.

E. R. DRAVBR.

GBNTRIFUGAL REEL.

(No Model.) 3 Sheets-Sheet '2.

B. R. DRAVBR. GBNTRIFUGAL REEL.

No. 326,901. Patented Sept. 22, 1885.

m MMM l Wmesss. l wm (No Model.) 8 Sheets-Sheet 3.

E. R. DRAVER.

GENTRIPUGAL REEL.

No. 326,901. Patented Sept. 22, 1885A.

Wut-meist m www YN there rares EMIL ROBERT DRAVER, OF STILLVATER, MINNESOTA.

CENTRIFUGAL REEL.

SPECIFICATION forming part of Letters Patent No, 326,901, dated September 22, 1885.

(No model.)

To all whom t may concern:

Be it known that I, EMIL ROBERT DRAvnR, a citizen of the United States, anda resident of Stillwater, in the county of Vashington, in the State of Minnesota, have invented certain new and useful Improvements in Centrifugal Reels, of which the following is a full. clear, and exact description, reference being also had to the accompanying drawings.

This invention relates to centrifugal reels in which milling products are treated in the course of their reduction into flour, te. and it consists in the construction and combination of parts, as hereinafter shown and described, and then specifically defined inthe claims.

In the drawings, Figure l is a longitudinal sectional elevation. Fig. 2 is a cross-sectional elevation on the line a: x of Fig. l, and with a portion of the head7 broken away to'show the interior construction of the reel. Fig. 3 is an outside elevation of the feed end of the machine. Fig. 4 is an enlarged detail illustrating more fully the manner of connecting the bolting-cloth to the heads of the reel. Fig. 5 is an enlarged perspective viewof a portion of the rim of the feed-end head of the reel, illustrating more fully the manner of securing the cloth thereto. Fig. 6 is an enlarged perspective View of a portion of the reel-frame, illustrating more fully its construction.

A is the frame-work of any suitable construction and having the usual conveyer, A',in its lower part.

B is the main horizontal driving-shaft journaled at one end in bearing B2 on a bridgetree, A3, and at the other end in a hanger or bridge-tree, B3.

G is a hollow sleeve or tubular shaft encircling the shaft B and journaled at one end outside the casing Ain a socket formed 'for it in the bearing B2 and projecting into the casing for some distance.

C2 is a collar encircling the shaft B at the inner end ofthe tubular shaft C and adapted to be fixed to the shaft by a set screw, a2, for bearing against the inner end of the said tubular shaft and preventing an inward movement or displacement thereof.

D is another sleeve or tubular shaft encircling the other end of the shaft B andjournaled outside the casing A in asocket formed for it in the hanger B3 and passing inward through the frame, as shown. This hanger B3 will be constructed in any desired manner and attached to the casing A by a bridge-tree or other means, and will support a short horizontal shaft, B", by arms B5.

On the eXtreme outer end of the shaft B is a driving-pulley, B6, through which lnotionis imparted to the shaft from the source of power in the mill in any suitable manner. Inside this pulley Bi on the shaft B issecured a pinion, B7, engaging with a gear-wheel, B8, on the countershaft Bt, this countershaft being provided with a chain-pinion, D, in line with a chain-wheel, D2, on the sleeve D.

On the shaft of the conveyer A, in a line below the pinion D3, is a chainpulley, D, around which a chain, D5, runs, and from thence around a tightener-pulley, D, to the chain-pulley D2, fast on the sleeve D, and from thence around one side of the chain-pin` ion D3, fast to the shaft B", and thence back to the conveyer-shaft. By this means the conveyer is driven from the shaft B" by the chain D5, while at the same time, by its passage around the pulley D2, the same chain imparts mot-ion to the reel in the same dircction as the beater-shaft.

By forming the pinion B7 smaller than theY gear B8 the shaft B4 runs at a slower speed than the shaft B', and by forming the chain-wheel DZ larger than the chainpinion D3 the reel will run slower than the beater-cylinder, but in the same direction.

E is a hub fast upon the sleeve D, inside the casing A, and connected by radiating arms E2 to a disk, E3, while a similar hub, F', with an internal screw-thread, fits on a corresponding screw-thread, t', on the sleeve C, and is connected by radiating arms F2 to a disk, F, the two disks, respectively, forming the head and tail7 ends of the rech as hereinafter shown.

be fastened to the sleeve C by a set-screw, a3, when required, as hereinafter shown.

The central portion of the disk E3 is wanting, and is lsurrounded by a ring, E4, which closes the space between the disk and thc end 100 The hub F is adapted to 95 of the frame A', as shown. The ring E4 may be attached to the disk E5, as shown, or to the frame A', as preferred.

G is the feed-spout leading through the open center of the disk E5, as shown.

H is a disk surrounding the shaft B. just inside the hub E', and held in place and secured to the shaft by a collar, H5, having setscrew b, as shown, this disk serving as a "stop7 to the inflowing material from the spout G, and causing it by its revolution to spread the material outward and throw it against the cloth just at the moment it enters the reel, and thereby insure the contact of the material With all parts of the surface of the cloth.

The disk H. may be cast fast to the hub E', if preferred.

Attached to the inner face of the disk F is a series of curved spouts or carriers, cZ, converging toward the center and turned outward through the central openingin the disk, as shown.

F4 is a cylindrical sheet-metal ring surrounding the central opening in the disk F5 and projecting toward the end of the frame A, and adapted to revolvewit-h the reel in the side of the discharge-spout K', as shown.

By means of the co-operation ofthe curved spouts d, ring F5, and discharge-spout K,the tailings or the material which fails to pass through the meshes of the cloth will be caught up by the spouts d as the reel revolves, and fed into the spout K', the ring F4 serving to prevent these tailings from falling into the conveyer A5.

On the inner face of the disk E5 is formed a ring or annular rib, E5, having a groove, e,in its outer edge, as shown more clearly in Figs. 3 and 4, and covered by a metal band, E5, secured to the annular ribby screws g. This band E5 covers the groove e, except at the ends of the band vwhich do not quite touch, leaving an open space, t', as shown in Fig. 5.

The outer edge of the rim E5 is of a less di- 'ameter than the rear part, so that a small space will be left, between the band and the rim, as shown in Fig. 5, in order that the cloth or the binding may not be pinched between the band and rim.

The groove e may be made partially in the band E5 and partially in the rim E5, or entirely in either, as prefered.

The bolting-eloth L has a binding, h h2, on each end, of ticking7 or other heavy fabric, and cords h5 h4 hemmed into the ends of the bindings.

Vhen the cloth is to be attached to the reel, one end, h5, of the binding (having the cord h5 hemmed into it) is inserted into the groove e beneath the band E6 in the opening i between its ends, (see Fig. 5,) and drawn around the rib E5 until it emerges again from beneath the band in the open space t'. The cloth must be just Wide enough so that When thus drawn around the rib E5 its edges will meet. This Will leave the binding h projecting out from between the band E5 and rib E5 all around them. The edges of the bolting-cloth and the ends of the bindings are then laced or sewed together, and the binding h drawn over the edge of the disk F5, and drawn tightly over the disk by bringing the ends of the cord h4 together and gathering the binding h around the ring F4 and tying the ends of the cord together.

The disk F5 has a groove formed in its outer edge, into which a strap, F5, is adapted to be clamped, after the cloth is stretched, to prevent the heads E5 F5 from being drawn together, as hereinafter set forth. The band F5 is divided into two parts, and its ends adapted to be clamped together by clamps m m5.

At suitable intervals betweenthe disks E5 and F5 a series of metal bands,'M, are placed inside the cloth-cylinder and connected togetheron one side by a bar, M5, to retain them in their proper places, and each ofthese bands is surrounded outside the cloth L by another band, M5, each band M5 being clamped upon its respective band M by a clamp, n', which draws its ends together. By this means the cloth L is firmly supported at suitable inter-y vals.

rThe bar M2 is attached by one end disk F5, as shown in Fig. 1.

The bands M5 have rods N running over them, and riveted or otherwise fastened to them, by which they are connected to the disks to the F5 and E5, as shown, and the rods are secured in the disk E5 by nuts z, and in the disk F3 by nuts, or by being riveted `or otherwise fastened therein.

As before stated, the tubular sleeve Chas a screw-thread, 1,', on its exterior, on which the hub F fits, so that by revolving the sleeve the hub F and its attached disk F5 will be moved away from the disk E5 and thus stretch the cloth L lengthwise of the reel.

The hub F has a setscrew, a5, by which it may be xed to the tube G after the cloth is tightened, so that the tube and reel will be revolved together.

The collar C5 is to be set up against the end of the tube C/ when the cloth is to be stretched to prevent the end movement of the tube and then released to prevent unnecessary friction.

The beater-cylinder is of the ordinary construction, consisting of beater-ribs P', attached at an angle to the cloth L across the rims P2 of wheels or spiders connected by arms P5 to hubs l4 on the shaft B.

I claim a great advantage by the manner shown of constructing the cloth-covered reel without internal longitudinal ribs except the one thin bar, M5, as the material, when thrown against the cloth by the rapidly-revolving beaters P', strikes the cloth only, and is not obstructed by anything on the interior of the reel, the rings M offering no obstruction, and the thinness of the bar M2 causing the material to pass freely over it and not be affected IOO IIO

Y .-Vi, AV*

thereby except to a limited and immaterial extent, this bar not generally exceeding onesixteenth of an inch in thickness.

In reels having interior longitudinal ribs, the material being thrown agai nst them glances ot'f and strikes the cloth with accelerated speed, and always in the saine place, so that the clot-h thus continuously acted upon wears faster than other portions; but with my arrangement the cloth wears evenly on all its surface, as there is nothing on the interior of the reel to cause the material to act upon it with more force at one point than at another. This forni of the reel also produces a better effect on the material, as the result sought to be obtained is the separation of the particles and not their disintegration.

In reels having internal longitudinal ribs the material is driven against them with great force and the particles broken, which result I Wish to avoid in my machine.

Should the cloth L become slaekened by stretching, or from other causes, it may be tightened again by merely revolving the sleeve C' forward and drawing the lacings which secure the edges of cloth together closer, whereby its girth may be tightened,if required. As a matter of course, it will be understood that the bands M3, set-screws ai, and nuts z ot' the rods N must be loosened before the cloth can be tightened.

'Io assist the operator in taking u p the slack of the cloth L along its longitudinal scam, either when first putting thel cloth on the inachine or in tightening it afterward, I provide two pins, v'o't, adapted to be set down through perforations made for them in the ring or band E6, and through the binding h2, and into the rim E5. (See Fig. 5.) When the cloth is to be tightened, one of the pins u' or if is set down into place, and the binding It' drawn tightly around the rim E4. The second pin, oi, is then inserted into its place through the band M, the two pins thus retaining the cloth v `in its stretched condition until the operator can secure the edges by lacing or sewing.

Having described my invention, and set forth its merits, what I claim isl. In a centrifugal separator, the combination of a frame, A', a horizontal shaft, B', a beater-cylinder, tube D', surrounding said shaft B', a disk, E3, tube C', having external screw-tlii'eacl,t', disk F3, having a corresponding screw thread in its hub fitting over tube C', band E6,attached to disk E3, band F, clamped to disk F, bolting-cloth L, having bindings h' 11.2, and cords h3 h4, hoops M', connecting-bar M2 and clamping-bands M, and adjustable rods N, substantially as set forth.

2. In a centrifugal separator, the combination of a frame, A', a horizontal shaft, B', a beater-cylinder, tube D', surrounding said shaft B', disk E3, tube C', having external soreW-tliread,t', disk F, having a corresponding screw-thread in its hub and fitting over said tube C', band E, attached to disk E3, band F, clamped to disk F3, bolting-cloth L, having bindings h' h2, and cords h3 h", hoops M', connectingbar M2, clamping-bands M3, adjustable rods N, stop-plate H', at the feedend of said machine, and curved dischargespouts d, attached to the disk F3 at the tail end of said machine,substantially as set forth.

3. In a centrifugal separator, the combination of a frame-Werk, a horizontal shaft, a beater-oylinderadaptedtoberapidlyrevolved, a pinion, B7, on said shaft, a bolting-clothcovered reel surrounding said beater-cylinder, tubular shafts or sleeves C' D', by which it is journaled ccncentrically around said shaft and beater-cylinder, chain-pulley D", fast on sleeve D. counter-shaft Bt, gear-Wheel BB, engaging pinion B7, chain-pinion D3, on said counter-shaft, chain-wheel D, the conveyeishaft, tightener D,and chain D5,substantial1y as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

EMIL ROBERT DRAVER.

XVitnesses:

LoUrs Fnnsniz, J r., W. J. RoDGERs. 

